diff options
Diffstat (limited to 'mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/ssa/SsaSubtitle.java')
-rw-r--r-- | mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/ssa/SsaSubtitle.java | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/ssa/SsaSubtitle.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/ssa/SsaSubtitle.java new file mode 100644 index 0000000000..fb0544156d --- /dev/null +++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/ssa/SsaSubtitle.java @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2017 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.mozilla.thirdparty.com.google.android.exoplayer2.text.ssa; + +import org.mozilla.thirdparty.com.google.android.exoplayer2.C; +import org.mozilla.thirdparty.com.google.android.exoplayer2.text.Cue; +import org.mozilla.thirdparty.com.google.android.exoplayer2.text.Subtitle; +import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions; +import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util; +import java.util.Collections; +import java.util.List; + +/** + * A representation of an SSA/ASS subtitle. + */ +/* package */ final class SsaSubtitle implements Subtitle { + + private final List<List<Cue>> cues; + private final List<Long> cueTimesUs; + + /** + * @param cues The cues in the subtitle. + * @param cueTimesUs The cue times, in microseconds. + */ + public SsaSubtitle(List<List<Cue>> cues, List<Long> cueTimesUs) { + this.cues = cues; + this.cueTimesUs = cueTimesUs; + } + + @Override + public int getNextEventTimeIndex(long timeUs) { + int index = Util.binarySearchCeil(cueTimesUs, timeUs, false, false); + return index < cueTimesUs.size() ? index : C.INDEX_UNSET; + } + + @Override + public int getEventTimeCount() { + return cueTimesUs.size(); + } + + @Override + public long getEventTime(int index) { + Assertions.checkArgument(index >= 0); + Assertions.checkArgument(index < cueTimesUs.size()); + return cueTimesUs.get(index); + } + + @Override + public List<Cue> getCues(long timeUs) { + int index = Util.binarySearchFloor(cueTimesUs, timeUs, true, false); + if (index == -1) { + // timeUs is earlier than the start of the first cue. + return Collections.emptyList(); + } else { + return cues.get(index); + } + } +} |